1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fff4e524fca7509d9d323d9265e60ec8ca2fbd6c81a87ead33707fee062171. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6623b21-c633-4129-89c3-5c650731abf2.json and https://artists.proofprofile.net/proofs/artist/d6623b21-c633-4129-89c3-5c650731abf2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sekibetsu (from "JoJo's Bizarre Adventure: Phantom Blood") [Piano Version]
The Path of the Wind (from "My Neighbor Totoro") [Piano Version]
Might*U (from "My Hero Academia: Heroes Rising") [Piano Version]
Watashi no Uso (from "Your Lie in April") [Piano Version]
Otouto Mitai na Sonzai (from "Your Lie in April") [Piano Version]
Mother Sea (from "One Piece") [Piano Version]
Is There Still Anything That Love Can Do? (from "Weathering with You") [Piano Version]
Ashitaka and San (from "Princess Mononoke") [Piano Version]
Merry-Go-Round of Life (from "Howl's Moving Castle") [Piano Version]
Main Theme (from "Fairy Tail") [Piano Version]
Kanashiki Kako (from"Fairy Tail") [Piano Version]
Lit (from "A Silent Voice") [Piano Version]
A Sea of Clouds in the Moonlight (from "Castle in the Sky") [Piano Version]
Accross the Violet Sky (from "Violet Evergarden") [Piano Version]
Main Theme (from "Grave of the Fireflies") [Piano Version]
Kamado Tanjiro no Uta (from "Demon Slayer") [Piano Version]
Itusmo nando demo (from "Spirited Away") [Piano Version]
Dream Lantern (from "Your Name") [Piano Version]
Sadness and Sorrow (from "Naruto") [Piano Version]
Is There Still Anything That Love Can Do? (from "Weathering with You") [Piano and Rain Version]
Watashi no Uso (from "Your Lie in April") [Piano and Rain Version]
Ashitaka and San (from "Princess Mononoke") [Piano and Rain Version]
Sekibetsu (from "JoJo's Bizarre Adventure: Phantom Blood") [Piano and Rain Version]
Date (from "Your Name") [Piano and Rain Version]
Dream Lantern (from "Your Name") [Piano and Rain Version]
Sadness and Sorrow (from "Naruto") [Piano and Rain Version]
Sadness and Sorrow (from "Naruto") - Piano and Rain Version
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b2cc4b2f7bdf51fab8cb3886c069271bed509915b6f22104c695f758fb620d. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:05:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200590.
Kanashiki Kako (from"Fairy Tail") [Piano and Rain Version]
The Path of the Wind (from "My Neighbor Totoro") [Piano and Rain Version]
Merry-Go-Round of Life (from "Howl's Moving Castle") [Piano and Rain Version]
Itusmo nando demo (from "Spirited Away") [Piano and Rain Version]
Otouto Mitai na Sonzai (from "Your Lie in April") [Piano and Rain Version]
Main Theme (from "Grave of the Fireflies") [Piano and Rain Version]
A Sea of Clouds in the Moonlight (from "Castle in the Sky") [Piano and Rain Version]
Lit (from "A Silent Voice") [Piano and Rain Version]
Might*U (from "My Hero Academia: Heroes Rising") [Piano and Rain Version]
Mother Sea (from "One Piece") [Piano and Rain Version]
Kamado Tanjiro no Uta (from "Demon Slayer") [Piano and Rain Version]
Accross the Violet Sky (from "Violet Evergarden") [Piano and Rain Version]
Main Theme (from "Fairy Tail") [Piano and Rain Version]
Itusmo nando demo (from "Spirited Away") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524e52a4eba91526921619d0717865b4ef587fec9895b788ebf29de9dc211055. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200587.
Watashi no Uso (from "Your Lie in April") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0875ea04b201bb3efbc5293b0dba1b95305f4997c2faa9cd99af58a92dc5076. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200588.
Accross the Violet Sky (from "Violet Evergarden") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaef60217feb20162e4548a0bc41d40317374879bcde92a099aff6ca3ea6851f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b2cc4b2f7bdf51fab8cb3886c069271bed509915b6f22104c695f758fb620d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200590.
Main Theme (from "Fairy Tail") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f37d59e94c0d1f3e635046bbd7954de779e4c4efbb7a3a12eeeb352f512ecff. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:43:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200591.
Ashitaka and San (from "Princess Mononoke") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68637695591cc232e9c393996529bf689350ee1a56c93b8818b2335ceeefe2e2. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:42:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200592.
The Path of the Wind (from "My Neighbor Totoro") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d973f465171b7154765ff86f19c0520bf987527f3c47fcc976fc9c840de508. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:39:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200593.
Might*U (from "My Hero Academia: Heroes Rising") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc7752d7f2155e9033d7a43501c4511ca02b170b2f2009634531958bddcdf17. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200594.
Sekibetsu (from "JoJo's Bizarre Adventure: Phantom Blood") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5789ec13300b56e5b936548c4b6a7f3a8e97f00fb552eb4192dec049c1a4c4a8. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:47:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200595.
Is There Still Anything That Love Can Do? (from "Weathering with You") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472cb89c91b4f5f7d5c3c05cd963f891bd3294623b5b5db11cdb96fa2990e353. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200596.
Lit (from "A Silent Voice") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfdad0b6fcef3c14c486439d9608019e12b84a5ba5420fccec3069e96745022. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200597.
Date (from "Your Name") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42101980954c6c1b04767ad9efeb066ce0742914ad35efac06013aa80a6b317a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200598.
A Sea of Clouds in the Moonlight (from "Castle in the Sky") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe907a798935e71b7ccd22cbb2d7e3b8ad6ef48bc5f6d9adbaf22a254880d86cc. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:56:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200599.
Kamado Tanjiro no Uta (from "Demon Slayer") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f6d6f0cd3ef87220cc85552221f81ea0fb4e25452aad913e368585bb5d48a84. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200600.
Merry-Go-Round of Life (from "Howl's Moving Castle") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1e8b2d57cb491d1488562dec863cae30fe654d5182a4f584dd04e306970b49. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200601.
Kanashiki Kako (from"Fairy Tail") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6296fd5bf610752697e8b6a4c80103294918b19c69b1e08447f2df3ff533a036. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:11:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200602.
Mother Sea (from "One Piece") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad1d35a8616a73d842efa2c2389b2b14527e1ffb404495df7147e4197635d86. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200603.
Otouto Mitai na Sonzai (from "Your Lie in April") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363f76ae6965a47a015f126db164af50b3e0e4e90c8694391fca63a97eac4d04. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:08:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200604.
Dream Lantern (from "Your Name") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc4e570795c8a8cf2750347308b13a0b5619b3f242b58d82d4599cb4b93536. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200605.
Main Theme (from "Grave of the Fireflies") - Piano and Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c34db407d483dcb052671e2bfefc168d21db929d51f8c6080876b4c0e354411. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:42:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ052200606.
Silhouette (from "Naruto Shippuden") [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41916dffc07597e5ce817fe34a510b34363561a2c2cf7336289f181edca32022. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ082500022.
One Last Kiss (from "Evangelion") [Piano Version]
Kickback (from "Chainsaw Man") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd50fbc53f0ce7c8ceebe3164f50234e01e2bd06f1fdcbb52b0a3ae1407774. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:07:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ082500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41916dffc07597e5ce817fe34a510b34363561a2c2cf7336289f181edca32022. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ082500022.
Silhouette (from "Naruto Shippuden") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589194ce7ff7fbe19799e66a06b5d3639fbd13921b255016021166625a392111. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:30:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ082500025.
Never Coming Back (from "Violet Evergarden") - Piano Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9cb00db1436253034c81d38a065e4e3a704b36498dad63c1d592b33c77a225. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ082500030.